The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites.

Details The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites. The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites.

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.0803h&link_type=abstract

American Astronomical Society, DPS meeting #40, #8.03; Bulletin of the American Astronomical Society, Vol. 40, p.398

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Since 2004 the Cassini Composite Infrared Spectrometer (CIRS) has been mapping the surface of Saturn's icy moons in the infra-red. CIRS' long-wavelength detector (FP1) covers 10 to 600 cm-1 and its data provide both good local time coverage and a high sensitivity to the thermal emission of these moons. The bolometric albedo and thermal inertia values of Mimas, Enceladus, Tethys, Dione and Iapetus have been determined by minimizing the reduced chi-squared fit between observed and synthetic FP1 spectra over a range of bolometric albedo and thermal inertia values. The synthetic CIRS spectrum is calculated from a one-dimensional numerical thermal model (c.f. Spencer et al., 1989), accounting for the observational geometry and finite size of the FP1 field of view. Thermal inertias for all satellites are surprisingly low, in the range 7 to 20 MKS. The CIRS FP1 coverage of Enceladus is so extensive that latitudinal variations in values of the bolometric albedo and thermal inertia have also been derived. Extrapolation of the observed latitudinal trend to high southern latitudes has enabled the passive thermal emission from Enceladus' active south pole to be calculated. This provides new constraints on the magnitude of the endogenic heat observed during the most recent flyby of this region, in March 2008. The correlation between the observed endogenic power and the tiger stripe locations is also explored.

Affiliated with

Also associated with

No associations

Rating

The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Endogenic Power of Enceladus' South Pole as observed by Cassini/CIRS and Thermal Inertia and Bolometric Albedo of all Saturn's Icy Satellites. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1436508